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Finding the Fourth Proportional to 444,283.62, 612,473.72 and 316,737.78

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Solution

The fourth proportional to 444,283.62, 612,473.72 and 316,737.78 is: 436,643.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,283.62 : 612,473.72 = 316,737.78 : x
  2. Step 2: Convert to fraction form
    444,283.62/612,473.72 = 316,737.78/x
  3. Step 3: Cross multiply
    444,283.62x = 612,473.72 × 316,737.78
  4. Step 4: Simplify right side
    444,283.62x = 193,993,564,797.45
  5. Step 5: Solve for x
    x = 193,993,564,797.45/444,283.62
  6. Step 6: Final answer
    x = 436,643.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.